Too many words to write down is an adjective used to describe the amount of words that cannot be recorded with pen and paper. The term originally originated from the practice of ancient calligraphy, when people used bamboo as a substitute for brushes and ground the nodes of the bamboo into pen tips. Because the grain and texture of bamboo itself are different, the effects of practice are also different. When people practice hundreds or thousands of times on a piece of bamboo, it will leave scratches of varying depths, so the number of words written will be incalculable. The phrase "too many books to write" describes this phenomenon very incisively, and therefore it has gradually become a commonly used term.
In modern society, "too many books to write" is more often used to describe written materials with a huge amount of information. For example, some large-scale reports, papers, historical documents, etc. often contain tens of thousands or even hundreds of thousands of words of text content. Such works are called masterpieces that are too numerous to write down. These documents not only require the author to spend a lot of time and effort to create, but also require the reader to invest a huge amount of time to read and understand. If you are reading these masterpieces, you can say that you are fighting your way through a masterpiece that is too numerous to include.
Finally, the word "too many to describe" is also used to describe complex interpersonal relationships. In modern society, people's ways and means of communication have become more diverse, and interpersonal relationships have become more complex. Sometimes, a sentence or an expression between two people may convey a lot of information, and this information is often difficult to understand and interpret. If a person's emotions, attitudes, and behaviors are very complex, then we can describe that person and his interpersonal relationships as indescribable. Such interpersonal relationships may require us to spend more time and energy to understand and deal with them.